/*
 * JVGalleryView.java
 */

package jvgallery;

import java.awt.GridLayout;
import org.jdesktop.application.Action;
import org.jdesktop.application.ResourceMap;
import org.jdesktop.application.SingleFrameApplication;
import org.jdesktop.application.FrameView;
import org.jdesktop.application.TaskMonitor;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import javax.swing.Timer;
import javax.swing.Icon;
import javax.swing.JDialog;
import javax.swing.JFrame;

/**
 * The application's main frame.
 */
public class JVGalleryView extends FrameView {

    String fsRootPath = ".";

    GridLayout thumbnailsPanelLayout;
    FileSystemModel fsModel;

    public JVGalleryView(SingleFrameApplication app) {
        super(app);

        fsModel = new FileSystemModel(new File(fsRootPath));

        // NetBeans GUI auto-loading method
        initComponents();

        // Set Thumbnails Panel Layout
        GridLayout thumbnailsPanelLayout = new GridLayout(0,3); // (rows,columns). 0 = as much as needed
        thumbnailsPanel.setLayout(thumbnailsPanelLayout);
        // Space between thumbnails
        thumbnailsPanelLayout.setHgap(new Integer("10").intValue());
        thumbnailsPanelLayout.setVgap(new Integer("10").intValue());

        this.thumbnailsPanelLayout = thumbnailsPanelLayout;

        // status bar initialization - message timeout, idle icon and busy animation, etc
        ResourceMap resourceMap = getResourceMap();
        int messageTimeout = resourceMap.getInteger("StatusBar.messageTimeout");
        messageTimer = new Timer(messageTimeout, new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                statusMessageLabel.setText("");
            }
        });
        messageTimer.setRepeats(false);
        int busyAnimationRate = resourceMap.getInteger("StatusBar.busyAnimationRate");
        for (int i = 0; i < busyIcons.length; i++) {
            busyIcons[i] = resourceMap.getIcon("StatusBar.busyIcons[" + i + "]");
        }
        busyIconTimer = new Timer(busyAnimationRate, new ActionListener() {
            public void actionPerformed(ActionEvent e) {
                busyIconIndex = (busyIconIndex + 1) % busyIcons.length;
                statusAnimationLabel.setIcon(busyIcons[busyIconIndex]);
            }
        });
        idleIcon = resourceMap.getIcon("StatusBar.idleIcon");
        statusAnimationLabel.setIcon(idleIcon);
        progressBar.setVisible(false);

        // connecting action tasks to status bar via TaskMonitor
        TaskMonitor taskMonitor = new TaskMonitor(getApplication().getContext());
        taskMonitor.addPropertyChangeListener(new java.beans.PropertyChangeListener() {
            public void propertyChange(java.beans.PropertyChangeEvent evt) {
                String propertyName = evt.getPropertyName();
                if ("started".equals(propertyName)) {
                    if (!busyIconTimer.isRunning()) {
                        statusAnimationLabel.setIcon(busyIcons[0]);
                        busyIconIndex = 0;
                        busyIconTimer.start();
                    }
                    progressBar.setVisible(true);
                    progressBar.setIndeterminate(true);
                } else if ("done".equals(propertyName)) {
                    busyIconTimer.stop();
                    statusAnimationLabel.setIcon(idleIcon);
                    progressBar.setVisible(false);
                    progressBar.setValue(0);
                } else if ("message".equals(propertyName)) {
                    String text = (String)(evt.getNewValue());
                    statusMessageLabel.setText((text == null) ? "" : text);
                    messageTimer.restart();
                } else if ("progress".equals(propertyName)) {
                    int value = (Integer)(evt.getNewValue());
                    progressBar.setVisible(true);
                    progressBar.setIndeterminate(false);
                    progressBar.setValue(value);
                }
            }
        });
 
        // Onload tests -- DEBUG
        
        this.addThumbnail("/Volumes/Documents/Images/island.png", new Float("0.2"));
        this.addThumbnail("/Volumes/Documents/Images/island.png", new Float("0.2"));
        this.addThumbnail("/Volumes/Documents/Images/island.png", new Float("0.2"));
        this.addThumbnail("/Volumes/Documents/Images/island.png", new Float("0.2"));
        this.addThumbnail("/Volumes/Documents/Images/island.png", new Float("0.2"));
        this.addThumbnail("/Volumes/Documents/Images/Wallpapers iPhone/capricorn2k6_ip.jpg", new Float("0.2"));
    }

    public void addThumbnail(String imgpath, float scale)
    {
        // Add thumbnail
        Thumbnail thumb = new Thumbnail(imgpath, scale);
        this.thumbnailsPanel.add(thumb); // add thumbnail
        this.thumbnailsPanel.revalidate(); // refresh layout - NB : validate() messes up...
    }

    // @TODO : don't scan twice the same dir, if its images are already displayed
    private void scanDir(File dir)
    {
        // Scan directories only
        if(dir.isFile())
            return;

        File[] fList = dir.listFiles();
        for(int i = 0 ; i < fList.length ; i++)
        {
            if(fList[i].isDirectory())
            {;} // @TODO : recursive call
            else
            {
                String fullPath = fList[i].getPath();
                this.addThumbnail(fullPath, new Float("3")); // @TODO : calc scale ratio
            }
        }
    }

    @Action
    public void showAboutBox()
    {
        if (aboutBox == null) {
            JFrame mainFrame = JVGalleryApp.getApplication().getMainFrame();
            aboutBox = new JVGalleryAboutBox(mainFrame);
            aboutBox.setLocationRelativeTo(mainFrame);
        }
        JVGalleryApp.getApplication().show(aboutBox);
    }

    /** This method is called from within the constructor to
     * initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is
     * always regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        mainPanel = new javax.swing.JPanel();
        splitPane = new javax.swing.JSplitPane();
        thumbnailsScrollPane = new javax.swing.JScrollPane();
        thumbnailsPanel = new javax.swing.JPanel();
        fsTreeScrollPane = new javax.swing.JScrollPane();
        fsTree = new javax.swing.JTree();
        menuBar = new javax.swing.JMenuBar();
        javax.swing.JMenu fileMenu = new javax.swing.JMenu();
        javax.swing.JMenuItem exitMenuItem = new javax.swing.JMenuItem();
        javax.swing.JMenu helpMenu = new javax.swing.JMenu();
        javax.swing.JMenuItem aboutMenuItem = new javax.swing.JMenuItem();
        statusPanel = new javax.swing.JPanel();
        javax.swing.JSeparator statusPanelSeparator = new javax.swing.JSeparator();
        statusMessageLabel = new javax.swing.JLabel();
        statusAnimationLabel = new javax.swing.JLabel();
        progressBar = new javax.swing.JProgressBar();

        mainPanel.setName("mainPanel"); // NOI18N
        mainPanel.setLayout(new java.awt.BorderLayout());

        splitPane.setDividerLocation(200);
        splitPane.setName("splitPane"); // NOI18N

        thumbnailsScrollPane.setName("thumbnailsScrollPane"); // NOI18N

        thumbnailsPanel.setName("thumbnailsPanel"); // NOI18N

        javax.swing.GroupLayout thumbnailsPanelLayout = new javax.swing.GroupLayout(thumbnailsPanel);
        thumbnailsPanel.setLayout(thumbnailsPanelLayout);
        thumbnailsPanelLayout.setHorizontalGroup(
            thumbnailsPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 699, Short.MAX_VALUE)
        );
        thumbnailsPanelLayout.setVerticalGroup(
            thumbnailsPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 581, Short.MAX_VALUE)
        );

        thumbnailsScrollPane.setViewportView(thumbnailsPanel);

        splitPane.setRightComponent(thumbnailsScrollPane);

        fsTreeScrollPane.setName("fsTreeScrollPane"); // NOI18N

        fsTree.setModel(fsModel);
        fsTree.setName("fsTree"); // NOI18N
        fsTree.addTreeSelectionListener(new javax.swing.event.TreeSelectionListener() {
            public void valueChanged(javax.swing.event.TreeSelectionEvent evt) {
                fsTreeValueChanged(evt);
            }
        });
        fsTreeScrollPane.setViewportView(fsTree);

        splitPane.setLeftComponent(fsTreeScrollPane);

        mainPanel.add(splitPane, java.awt.BorderLayout.CENTER);

        menuBar.setName("menuBar"); // NOI18N

        org.jdesktop.application.ResourceMap resourceMap = org.jdesktop.application.Application.getInstance(jvgallery.JVGalleryApp.class).getContext().getResourceMap(JVGalleryView.class);
        fileMenu.setText(resourceMap.getString("fileMenu.text")); // NOI18N
        fileMenu.setName("fileMenu"); // NOI18N

        javax.swing.ActionMap actionMap = org.jdesktop.application.Application.getInstance(jvgallery.JVGalleryApp.class).getContext().getActionMap(JVGalleryView.class, this);
        exitMenuItem.setAction(actionMap.get("quit")); // NOI18N
        exitMenuItem.setName("exitMenuItem"); // NOI18N
        fileMenu.add(exitMenuItem);

        menuBar.add(fileMenu);

        helpMenu.setText(resourceMap.getString("helpMenu.text")); // NOI18N
        helpMenu.setName("helpMenu"); // NOI18N

        aboutMenuItem.setAction(actionMap.get("showAboutBox")); // NOI18N
        aboutMenuItem.setName("aboutMenuItem"); // NOI18N
        helpMenu.add(aboutMenuItem);

        menuBar.add(helpMenu);

        statusPanel.setName("statusPanel"); // NOI18N

        statusPanelSeparator.setName("statusPanelSeparator"); // NOI18N

        statusMessageLabel.setName("statusMessageLabel"); // NOI18N

        statusAnimationLabel.setHorizontalAlignment(javax.swing.SwingConstants.LEFT);
        statusAnimationLabel.setName("statusAnimationLabel"); // NOI18N

        progressBar.setName("progressBar"); // NOI18N

        javax.swing.GroupLayout statusPanelLayout = new javax.swing.GroupLayout(statusPanel);
        statusPanel.setLayout(statusPanelLayout);
        statusPanelLayout.setHorizontalGroup(
            statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addComponent(statusPanelSeparator, javax.swing.GroupLayout.DEFAULT_SIZE, 714, Short.MAX_VALUE)
            .addGroup(statusPanelLayout.createSequentialGroup()
                .addContainerGap()
                .addComponent(statusMessageLabel)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 530, Short.MAX_VALUE)
                .addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(statusAnimationLabel)
                .addContainerGap())
        );
        statusPanelLayout.setVerticalGroup(
            statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(statusPanelLayout.createSequentialGroup()
                .addComponent(statusPanelSeparator, javax.swing.GroupLayout.PREFERRED_SIZE, 2, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGroup(statusPanelLayout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(statusMessageLabel)
                    .addComponent(statusAnimationLabel)
                    .addComponent(progressBar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(3, 3, 3))
        );

        setComponent(mainPanel);
        setMenuBar(menuBar);
        setStatusBar(statusPanel);
    }// </editor-fold>//GEN-END:initComponents

    private void fsTreeValueChanged(javax.swing.event.TreeSelectionEvent evt)//GEN-FIRST:event_fsTreeValueChanged
    {//GEN-HEADEREND:event_fsTreeValueChanged
        File curdir = (File) this.fsTree.getLastSelectedPathComponent();
        this.scanDir(curdir);
    }//GEN-LAST:event_fsTreeValueChanged

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JTree fsTree;
    private javax.swing.JScrollPane fsTreeScrollPane;
    private javax.swing.JPanel mainPanel;
    private javax.swing.JMenuBar menuBar;
    private javax.swing.JProgressBar progressBar;
    private javax.swing.JSplitPane splitPane;
    private javax.swing.JLabel statusAnimationLabel;
    private javax.swing.JLabel statusMessageLabel;
    private javax.swing.JPanel statusPanel;
    private javax.swing.JPanel thumbnailsPanel;
    private javax.swing.JScrollPane thumbnailsScrollPane;
    // End of variables declaration//GEN-END:variables

    private final Timer messageTimer;
    private final Timer busyIconTimer;
    private final Icon idleIcon;
    private final Icon[] busyIcons = new Icon[15];
    private int busyIconIndex = 0;

    private JDialog aboutBox;
}
